question!

hey, sorry if this has already been asked, but i looked on loadds of other posts but cudnt find nethin that answered my exactly.

u no some ppl say that u gain weight wen on pill due to appetite increasing, and then after a few months you shouldnt gain ne more, does that mean that ur apetite decreases then?? or u can stil eat the same amount and not put on so much weight? im confused

thanks
xxxxx